1. In accordance with the terms of a Trading Plan (SEC Rule 10b5-1 Securities Exchange Act of 1934), the reporting person converted long-term incentive units into common limited partnership units ("Common Units") of Digital Realty Trust, L.P., a Maryland Limited Partnership (the "Operating Partnership"), and subsequently redeemed the Common Units for shares of the common stock of Digital Realty Trust, Inc. (the "Issuer"), all in accordance with the requirements of the Limited Partnership Agreement of the Operating Partnership.

2. Long-term incentive units are profits interest units in the Operating Partnership. Vested profits interest units may be converted into an equal number of Common Units in the Operating Partnership on a one-for-one basis at any time. Common Units are redeemable for cash based on the fair market value of an equivalent number of shares of the Issuer's common stock, or, at the election of the Issuer, for an equal number of shares of the Issuer's common stock, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions or similar events.

3. Common Stock sold in accordance with the terms of a Trading Plan (SEC Rule 10b5-1 - Securities Exchange Act of 1934).

This statement of changes in beneficial ownership ("Form 4") of securities of Digital Realty Trust, Inc. (the "Issuer") is being filed to report a transaction(s) that is also being reported concurrently on a Form 4 for Digital Realty Trust, L.P. (the "Operating Partnership"). The change(s) in beneficial ownership reported on this Form 4 for the Issuer are as a result of the same transaction(s) reported in the Form 4 for the Operating Partnership.

/s/ Barbara Polster, attorney-in-fact

03/30/2012

** Signature of Reporting Person

Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person,
see
Instruction
4
(b)(v).